EP3169174B1 - Protective helmet with built-in mobile visor - Google Patents

Protective helmet with built-in mobile visor Download PDF

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Publication number
EP3169174B1
EP3169174B1 EP15738326.6A EP15738326A EP3169174B1 EP 3169174 B1 EP3169174 B1 EP 3169174B1 EP 15738326 A EP15738326 A EP 15738326A EP 3169174 B1 EP3169174 B1 EP 3169174B1
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EP
European Patent Office
Prior art keywords
visor
shell
helmet
helmet according
lowered position
Prior art date
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EP15738326.6A
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German (de)
French (fr)
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EP3169174A1 (en
Inventor
Rémi FINIEL
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Fwd Concept Sarl
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Fwd Concept Sarl
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Publication of EP3169174A1 publication Critical patent/EP3169174A1/en
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    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/185—Securing goggles or spectacles on helmet shells
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets

Definitions

  • the present invention relates to the field of protective helmets comprising an integrated visor, including sports helmets, and typically ski helmets.
  • Helmets are an important protection element of the user's head, against shocks and their possible consequences.
  • the eyes and / or face can be protected using a visor, independent or related to the helmet.
  • ski helmets dedicated to the practice of downhill skiing and other sports.
  • the helmets are devoid of eye protection, and the user uses glasses or a ski mask with a generally flat elastic strap.
  • the elastic strap surrounds the outside of the helmet, at the back of the user's head.
  • the helmet may include a groove or other means for holding the elastic strap in position.
  • the movable visors can be hinged on the shell of the helmet, by a pivot connection.
  • the document US7716754 presents an example of a ski helmet comprising a pivoting visor.
  • the document DE102013209564 presents a sports helmet, for example for cycling or skiing, comprising a mobile visor linked to the shell by an elastic.
  • the elastic comes out of the shell by two orifices.
  • the visor in the raised position as in the lowered position, is applied to an outer face of the shell and is in contact with this outer face, and covers the two output ports of the elastic.
  • the visor In the lowered position, the visor is pulled towards the back of the helmet and is wedged against the outer shell of the helmet.
  • This helmet does not allow any adaptation of the position of the visor according to the configuration of the face of the user.
  • the seal between the bottom of the visor and the face of the user will thus depend on the configuration of his face.
  • the user In addition to move from a lowered position of the visor to a raised position, the user must necessarily bring the visor to the fully raised position by pulling on the elastic.
  • helmets with articulated pivoting visor have an aesthetic similar to that of motorcycle helmets, which may be little appreciated by sports helmet users.
  • helmets with hinged visor have a lens (that is to say the transparent portion of the visor) of large size, unsightly. This large dimension is generally necessary because it is the tilting of the visor, around an axis of rotation and / or along the curvature of the upper part of the helmet shell, which allows its passage from a stowed position or taken out of the field of vision at the use position in the field of vision of the user wearing the helmet.
  • the invention relates to a sports helmet visor mobile to solve at least one of the aforementioned drawbacks.
  • the invention relates to a protective helmet with integrated movable visor comprising a shell having an open face area and a visor movable between a raised position and a lowered position in which it covers at least partially said face area, the visor being connected to the shell by an elastic member, wherein the visor has an upper bearing surface, and the shell comprises, on a periphery of the face area, a receiving surface of the upper bearing surface of the visor, and in which the visor is in the lowered position, the upper bearing surface of the visor is in contact with the receiving surface of the shell, and the elastic element tends to press the upper bearing surface of the visor on the surface. receiving the hull.
  • the raised position typically corresponds to a position on an upper outer surface of the shell, out of the field of view of a user wearing the helmet.
  • the down position typically corresponds to a position covering the eyes of a user wearing the helmet.
  • the receiving surface of the shell is typically at the upper periphery of the open face area.
  • the elastic member is configured to exert on the visor in the lowered position a force substantially orthogonal to the upper bearing surface.
  • the front shape of the shell defines an escape point of the visor, said exhaust point corresponding to an unstable position of the visor, located between the lowered position and the raised position, in which the resultant forces exerted on the visor by the elastic element on the one hand, and by the hull on the other hand, is zero.
  • the helmet may be configured so that when the visor is brought below the exhaust point and is engaged in the periphery of the facial zone, the elastic element tends to bring and maintain said visor in the lowered position, and, when the visor is brought over of the exhaust point, the elastic element tends to bring and maintain said visor in the raised position. This allows easy and assisted passage from the lowered position of the visor to the raised position, and vice versa.
  • the helmet may be shaped so that, when the visor is in the lowered position, the visor tends to adopt an equilibrium position, and when the visor is removed from this equilibrium position, the reaction force of the reception surface on the upper support surface of the visor to the force generated on the visor by the elastic element tends to bring said visor towards said equilibrium position.
  • This can in particular be obtained by providing a longitudinal offset between the connection between the elastic element and the visor on the one hand, and the point of contact between the shell and the visor when the latter is moved away from its equilibrium position (for example by the face of a user) on the other hand. This offset generates a torque tending to tilt the lower part of the visor towards the inside of the shell.
  • the force generated by the elastic element when the visor is lowered is transformed and tends to tilt the lower part of the visor towards the inside of the shell, for bring the visor back to the equilibrium position.
  • the upper bearing surface of the visor or the receiving surface of the shell comprises a shim having a thickness, a variation of the thickness of the shim modifying the equilibrium position.
  • the shim may advantageously comprise a mechanism for adjusting its thickness.
  • a shape match between the receiving surface of the shell and the upper bearing surface of the visor causes the visor to center vis-à-vis the shell, in the lowered position of the visor.
  • the helmet may comprise on the periphery of the facial zone at least one notch for receiving the elastic element when the visor is in the lowered position.
  • This notch may have several functions, including: allowing the elastic element to exert substantially orthogonal force to the upper support surface of the visor in the lowered position, and / or participate in the correct lateral centering of the visor.
  • the elastic element may comprise two portions of elastic cord each bonded on the one hand to the upper bearing surface of the visor, and on the other hand to a rear zone of the shell. Each portion of cord may be attached to the inside of the shell which it emerges through an orifice located in an anterior half of the shell.
  • the exhaust point may correspond to a position in which the connection points of the elastic element on the visor, the point of support of the visor on the shell and the orifices are coplanar.
  • the two portions of elastic cord may be part of the same elastic cord. They may, in another variant, be independent of one another.
  • a groove may connect an outlet port of a portion of elastic cord to a notch of the facing shell, so that in the lowered position the elastic cord exiting said orifice is housed in the groove.
  • the visor may comprise a lens having an outer face and an inner face, and in raised position the inner face of the lens faces a portion of an outer surface of the shell.
  • the figure 1 presents in a three-dimensional view a sports helmet according to an embodiment of the invention.
  • the helmet shown is a ski helmet.
  • the helmet shown has a shell 1 and a visor 2.
  • the shell 1 is for the protection of the head of the user of the helmet.
  • the shell is shaped to protect in particular the rear, top and side of the skull of the user wearing the helmet.
  • pads 3 complete the shell.
  • the pads 3 allow mechanical protection (against shocks), thermal and possibly acoustic ears and possibly the temporal lobes of the user.
  • the shell 1 has an open face zone 11.
  • the concepts of front and rear of the helmet are understood according to the meaning generally adopted for a helmet.
  • the back of the helmet corresponds to the part of the hull intended to protect the back of the skull of a user wearing the helmet.
  • the front is the opposite side, corresponding to the facial area of the user wearing the helmet.
  • the top of the helmet protects the top of the skull of the user.
  • the user's neck is towards the bottom of the helmet.
  • the notion of "longitudinal” means in a front-to-back direction of the helmet, the notion of "vertical” in a top-bottom direction of the helmet, the notion of "transverse” in a direction orthogonal to the longitudinal direction and the vertical direction.
  • the visor 2 is movable between a raised position, presented to figures 1 , and 4 , and a lowered position, represented in figures 2 , 3 , 5 , 6 and 7 .
  • the visor is intended to cover in the closed position at least a portion of the face of the user, and covers for this a corresponding portion of the open face area 11 of the shell 1.
  • the visor In the raised position, generally called open position, the visor is positioned above the front part of the shell 1, out of the user's field of vision.
  • the visor has a lens 21 whose inner face (generally the concave face) faces a portion of the outer surface of the shell.
  • the inner face of the lens 21 is protected from the weather in the raised position.
  • raindrops or snowflakes falling on the helmet fall on the outer face of the upwardly pointing lens 21, as shown in FIG. figure 4 , but do not stain the inner face of the lens 21.
  • the visor 2 may be provided on all or part of its periphery with sealing means 22 such as foam.
  • the sealing means 22 can also participate in the wearing comfort of the visor.
  • the sealing means may comprise strips of foam.
  • the concept The seal may be used for snow, water and / or dust depending on the sport for which the helmet is intended. For example, for a ski helmet as shown here, it is first and foremost the passage of snow under the visor which must be avoided, for example during a shower of snow or following the ski fall of the ski. 'user.
  • straps 4 connected to the shell 1 allow the attachment of the helmet on the head of the user.
  • the visor 2 is connected to the shell by means of an elastic element, whose elasticity allows the movement of the visor between the stable raised position and the stable down position and vice versa.
  • the anterior shape of the shell 1 defines a so-called exhaust point of the visor.
  • This exhaust point is typically defined by the front tip of the helmet, that is to say the extreme anterior point of the helmet.
  • the elastic member has one or more attachment points to the visor 2, defining a connection with said visor.
  • the exhaust point corresponds to the unstable position of the visor, situated between the lowered position and the raised position, in which the resultant of the forces exerted on the visor by the elastic element on the one hand, and the hull on the other hand, is zero.
  • the exhaust point corresponds to the position in which the connection points of the elastic element on the visor 2 and the point of support of the visor on the hull are coplanar.
  • the visor when the visor is sufficiently raised by the user, that is to say, raised above the exhaust point, it goes back automatically or at least in a assisted manner to its raised position, which is stable and totally predefined.
  • the visor 2 In this raised position, in which the visor typically rests above the front half of the helmet, the visor 2 is out of the user's field of view but is easily accessible.
  • the user can easily grasp the visor above the shell 1, and exert the pulling force down and towards the before necessary to bring the visor 2 below the exhaust point. Typically, it may be to bring the entire visor under the front tip of the shell 1 of the helmet.
  • the elastic element comprises, in the example of helmet shown here, and as shown well in particular in the figure 3 two portions of elastic cord 5.
  • the two portions of elastic cord 5 may, according to variants of the invention, be separated or be part of one and the same elastic cord.
  • the elastic cord portions are linked on the one hand to the visor 2. They are linked on the other hand to the helmet shell. In particular, they are linked to the rear of the shell 1, that is to say in the rear area 12 of the helmet intended to protect the back of the head of the user, in other words the area of the hull opposite to the open face area 11. This allows the elastic cord portions to have a length sufficient to allow movement of the visor between the raised position and the lowered position.
  • the portions of elastic cord 5 are advantageously connected to the shell 1 inside thereof, typically on an inner face of the shell 1.
  • the cord portions 5 emerge through orifices 13 located in the anterior half of the shell 1, that is to say half of the shell 1 located near the facial zone 11, typically at an upper cap of the shell 1.
  • the orifices may have an oblong shape, allowing the exit of the portions cord 5 of the shell 1 without generating fold cord portions when the visor is in the lowered position.
  • the elastic element may comprise only one point of connection with the visor 2.
  • the elastic element may comprise more than two points of connection with the visor 2. Three (or more) points of connection may offer a better return of the visor towards its raised position and towards its lowered position, a better setting in position of the visor 2, a larger recall force, etc.
  • the visor 2 of the shell 1 may advantageously be provided.
  • the uncoupling may, depending on the variants, be carried out at the level of the connection between the elastic element and the visor or at the level of the connection between the elastic element and the shell.
  • the elastic element may comprise, at one or more ends, buttons intended to be respectively introduced into slots or buttonholes of the visor 2.
  • quick fastening means may be employed.
  • these means may comprise one or more hooks intended to cooperate with loops of the elastic element.
  • the uncoupling of the visor allows a change thereof, and / or can be made for storing the helmet.
  • the elastic element that is to say typically the portions of elastic cord 5
  • the elastic element tends to return the visor to the raised position.
  • a notch 14 is formed on the front edge 15 of the shell 1 to receive, when the visor is in the lowered position, each portion of cord leaving an orifice 13.
  • two notches 14 are formed.
  • the notches 14 allow the portions of the cord 5 to exert a substantially vertical force on the visor 2 in the lowered position.
  • an upper bearing surface 23 of the visor 2 is brought into contact with a receiving surface 16 of the shell 1.
  • the receiving surface 16 has a shape adapted to the setting in support of the upper bearing surface 23 of the visor 2, and is positioned in an upper part of the facial zone 11 open the hull 1.
  • the cord portions are fixed in an upper area of the visor.
  • the force exerted on the visor by the cord portions 5 is essentially perpendicular to the upper bearing surface 23 that it tends to press against the receiving surface 16.
  • a detailed view of the zone of interaction between the visor and the shell, at the level of the notches 14, is presented to the figure 6 .
  • the presence of two portions of cord 5 arranged symmetrically on either side of a plane of symmetry P of the helmet, shown in FIG. figure 3 makes it possible to guarantee the centering of the visor 2 vis-à-vis the shell 1.
  • the elastic connection between the shell and the visor may allow a slight off the visor 2 vis-à-vis the shell 1. This allows a good fit and comfort of the visor on the face of the user wearing the helmet, especially if the helmet is slightly out of alignment with the face of the user, or if the user's face has a slight asymmetry.
  • the notches 14 may have an open V shape around the periphery of the open face area, thus providing a certain freedom of lateral positioning of the elastic element, and therefore the visor vis-à-vis the shell of the helmet.
  • the support zone between the upper bearing surface 23 and the receiving surface 16 is shaped to adopt the visor an equilibrium position when the visor 2 is in the lowered position.
  • the Figure 7 represents the visor in a position close to the equilibrium position, the visor being slightly tilted on the front tip 17 of the helmet.
  • the point or the zone of support of the visor 2 on the shell 1 of the helmet, in this case close to the front tip 17 of the helmet is offset longitudinally with respect to the connection points of the elastic element on the visor 2. This makes it possible to generate a torque tending to bring the visor into contact with the shell of the helmet.
  • the figure 8 presents the particular position of the visor 2 in which there is no longer any gap between the point or the bearing area of the visor 2 on the shell 1 and the connection points of the elastic element on the visor 2, so that there is more torque generated tending to bring the visor down.
  • This position of unstable equilibrium in which the resultant forces (represented by arrows) exerted on the visor is zero, corresponds to the exhaust point.
  • the elastic element will tend to bring the visor towards its raised stable position or its lowered stable position.
  • a shim may be disposed at the receiving surface 16 or the upper bearing surface 23 of the visor 2.
  • the thickness of the wedge causes a change in the balance position of the visor in the lowered position, which results in a change in the pressure on the face of the user.
  • the latter can be adjustable in thickness.
  • the figure 9 is an example of a wedge thickness adjusting mechanism, which may be employed in one embodiment of the invention. This mechanism comprises a wide head screw 61 forming wedge.
  • the figure 10 is another example of a wedge thickness adjusting mechanism, which may be employed in one embodiment of the invention.
  • two inclined planes 62, 63 are movable relative to each other so as to vary the thickness of the wedge assembly they compose.
  • a screw 64 allows their relative immobilization.
  • a correspondence of shape between the upper bearing surface 23 and the receiving surface 16 can make it possible to guarantee uniqueness of the position of the visor 2 in the lowered position with respect to the shell 1.
  • it can make it possible to guarantee the centering of the visor.
  • the notion of centering is understood as the fact of positioning laterally (typically, perpendicularly to a plane of symmetry P of the helmet, represented in FIG. figure 3 ) the visor 2 in a given relative position vis-à-vis the shell 1 of the helmet.
  • the elastic element tends to bring the visor into its seat. stable position noted.
  • the user wearing the helmet wishing to lift the visor can easily do so by sufficiently removing the visor of his face, and if necessary, by slightly accompanying the movement that the elastic element tends to print to the visor 2. Since all the positions of the helmet visor between the raised stable position and the lowered stable position are unstable, the elastic element systematically tends to bring the visor towards one of these stable positions.
  • the invention thus developed allows the provision of a protective helmet, including a sports helmet and for example a ski helmet, providing a mobile visor integrated helmet with which it forms a coherent and potentially aesthetic without the disadvantages of the mobile visors attached to the helmet shell by an axis of rotation (as on motorcycle helmets).
  • the size of the lens of the visor can be moderate.
  • an elastic connection and a suitable interface between the shell and the visor By the use of an elastic connection and a suitable interface between the shell and the visor, uniqueness of positioning, and therefore a good centering of the visor when it is lowered can be ensured.
  • the use of an interface between the hull and the visor in the lowered position implementing a contact between an upper bearing surface of the visor and a receiving zone of the hull located on the periphery of an area open face (in the upper part of the latter) allows on the one hand a good seal between the visor and the hull on the one hand at the interface, and on the other hand a good support of the visor on the face of the helmet user.
  • the helmet object of the present invention allows easy passage between these two stable positions.

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  • Helmets And Other Head Coverings (AREA)

Description

La présente invention concerne le domaine des casques de protection comportant une visière intégrée, notamment des casques de sport, et typiquement des casques de ski.The present invention relates to the field of protective helmets comprising an integrated visor, including sports helmets, and typically ski helmets.

Le port d'un casque est fréquent lors de nombreuses activités, par exemple dans le domaine industriel ou sportif. Les casques constituent un élément de protection important de la tête de l'utilisateur, contre les chocs et leurs éventuelles conséquences. Les yeux et/ou le visage peuvent être protégés à l'aide d'une visière, indépendante ou liée au casque.Wearing a helmet is common during many activities, for example in the industrial or sports field. Helmets are an important protection element of the user's head, against shocks and their possible consequences. The eyes and / or face can be protected using a visor, independent or related to the helmet.

Cela est par exemple couramment le cas dans les casques de sport tels que les casques dits « casques de ski », dédiés à la pratique du ski alpin et autres sports de glisse.This is for example commonly the case in sports helmets such as helmets called "ski helmets", dedicated to the practice of downhill skiing and other sports.

Traditionnellement, les casques sont dépourvus de protection pour les yeux, et l'utilisateur emploie des lunettes ou un masque de ski pourvu d'une sangle élastique généralement plate. La sangle élastique entoure l'extérieur du casque, à l'arrière de la tête de l'utilisateur. Le casque peut comporter une rainure ou d'autres moyens destinés à maintenir la sangle élastique en position.Traditionally, the helmets are devoid of eye protection, and the user uses glasses or a ski mask with a generally flat elastic strap. The elastic strap surrounds the outside of the helmet, at the back of the user's head. The helmet may include a groove or other means for holding the elastic strap in position.

Néanmoins, l'un des inconvénients d'un tel ensemble réside dans le fait que l'utilisateur portant le casque a besoin de ses deux mains pour manipuler le masque, ceci n'étant pas aisé du fait de la tension de la sangle élastique.Nevertheless, one of the disadvantages of such an assembly lies in the fact that the user wearing the helmet needs both hands to manipulate the mask, this being not easy because of the tension of the elastic strap.

Il est par ailleurs connu de doter la coque d'un casque d'une visière fixe ou mobile, afin de fournir à l'utilisateur un casque constitué d'un ensemble garantissant la protection du crâne et des yeux (ou du visage).It is also known to provide the shell of a helmet with a fixed or movable visor, to provide the user with a helmet consisting of a set ensuring the protection of the skull and eyes (or face).

De manière connue, les visières mobiles peuvent être articulées de sur la coque du casque, par une liaison pivot. Ainsi, le document US7716754 présente un exemple de casque de ski comportant une visière pivotante.In known manner, the movable visors can be hinged on the shell of the helmet, by a pivot connection. Thus, the document US7716754 presents an example of a ski helmet comprising a pivoting visor.

D'autres mécanismes sont connus pour permettre le mouvement d'une visière de casque. Notamment, le document FR2965152 présente un casque de ski comportant une visière liée en glissière à la coque.Other mechanisms are known to allow the movement of a helmet visor. In particular, the document FR2965152 has a ski helmet with a visor linked to the hull slide.

Le document DE102013209564 présente un casque de sport, par exemple pour le cyclisme ou le ski, comportant une visière mobile liée à la coque par un élastique. L'élastique sort de la coque par deux orifices. La visière, en position relevée comme en position abaissée, est appliquée sur une face externe de la coque et est en contact avec cette face externe, et recouvre les deux orifices de sortie de l'élastique. En position baissée, la visière est tirée vers l'arrière du casque et est calée contre la coque externe du casque. Ce casque ne permet aucune adaptation de la position de la visière selon la configuration du visage de l'utilisateur. L'étanchéité entre le bas de la visière et le visage de l'utilisateur dépendra ainsi de la configuration de son visage. En outre pour passer d'une position baissée de la visière à une position relevée, l'utilisateur doit nécessairement amener la visière jusqu'à la position complètement relevée en tirant sur l'élastique.The document DE102013209564 presents a sports helmet, for example for cycling or skiing, comprising a mobile visor linked to the shell by an elastic. The elastic comes out of the shell by two orifices. The visor, in the raised position as in the lowered position, is applied to an outer face of the shell and is in contact with this outer face, and covers the two output ports of the elastic. In the lowered position, the visor is pulled towards the back of the helmet and is wedged against the outer shell of the helmet. This helmet does not allow any adaptation of the position of the visor according to the configuration of the face of the user. The seal between the bottom of the visor and the face of the user will thus depend on the configuration of his face. In addition to move from a lowered position of the visor to a raised position, the user must necessarily bring the visor to the fully raised position by pulling on the elastic.

Ainsi, les casques de sports à visière mobile (intégrée auxdits casques) connus dans l'état de la technique présentent certains inconvénients. En effet, ces casques ne permettent pas de garantir un bon appui, notamment en partie basse de la visière, avec le visage de l'utilisateur. Il en résulte une mauvaise étanchéité, pouvant se traduire, selon le sport pratiqué et les conditions, par une entrée d'air désagréable, une entrée d'eau, de poussière, ou le passage de neige sous la visière par exemple en cas de chute à ski.Thus, sports helmets with a movable visor (integrated in said helmets) known in the state of the art have certain disadvantages. Indeed, these helmets do not ensure a good support, especially in the lower part of the visor, with the face of the user. This results in a poor seal, which can be translated, depending on the sport practiced and the conditions, by an unpleasant air intake, an entry of water, dust, or the passage of snow under the visor for example in case of fall ski.

Par ailleurs, les casques à visière articulée pivotante présentent une esthétique similaire à celle des casques de moto, qui peut être peu appréciée par les utilisateurs de casque de sport. Enfin, les casques à visière articulée présentent une lentille (c'est-à-dire la partie transparente de la visière) de grande dimension, peu esthétique. Cette grande dimension est généralement nécessaire car c'est le basculement de la visière, autour d'un axe de rotation et/ou le long de la courbure de la partie supérieure de la coque du casque, qui permet son passage d'une position rangée ou relevée hors champs de vision à la position utilisation dans le champ de vision de l'utilisateur portant le casque.In addition, helmets with articulated pivoting visor have an aesthetic similar to that of motorcycle helmets, which may be little appreciated by sports helmet users. Finally, helmets with hinged visor have a lens (that is to say the transparent portion of the visor) of large size, unsightly. This large dimension is generally necessary because it is the tilting of the visor, around an axis of rotation and / or along the curvature of the upper part of the helmet shell, which allows its passage from a stowed position or taken out of the field of vision at the use position in the field of vision of the user wearing the helmet.

L'invention porte sur un casque de sport à visière mobile permettant de résoudre au moins un des inconvénients précités.The invention relates to a sports helmet visor mobile to solve at least one of the aforementioned drawbacks.

Plus précisément, l'invention porte sur un casque de protection à visière mobile intégrée comportant une coque comportant une zone faciale ouverte et une visière mobile entre une position relevée et une position baissée dans laquelle elle recouvre au moins partiellement ladite zone faciale, la visière étant liée à la coque par un élément élastique, dans lequel la visière comporte une surface d'appui supérieure, et la coque comporte, sur un pourtour de la zone faciale, une surface de réception de la surface d'appui supérieure de la visière, et dans lequel la visière étant en position baissée, la surface d'appui supérieure de la visière est en contact avec la surface de réception de la coque, et l'élément élastique tend à plaquer la surface d'appui supérieure de la visière sur la surface de réception de la coque.More specifically, the invention relates to a protective helmet with integrated movable visor comprising a shell having an open face area and a visor movable between a raised position and a lowered position in which it covers at least partially said face area, the visor being connected to the shell by an elastic member, wherein the visor has an upper bearing surface, and the shell comprises, on a periphery of the face area, a receiving surface of the upper bearing surface of the visor, and in which the visor is in the lowered position, the upper bearing surface of the visor is in contact with the receiving surface of the shell, and the elastic element tends to press the upper bearing surface of the visor on the surface. receiving the hull.

La position relevée correspond typiquement à une position sur une surface externe supérieure de la coque, hors du champ de vision d'un utilisateur portant le casque. La position baissée correspond typiquement à une position recouvrant les yeux d'un utilisateur portant le casque. La surface de réception de la coque est typiquement au niveau du pourtour supérieur de la zone faciale ouverte.The raised position typically corresponds to a position on an upper outer surface of the shell, out of the field of view of a user wearing the helmet. The down position typically corresponds to a position covering the eyes of a user wearing the helmet. The receiving surface of the shell is typically at the upper periphery of the open face area.

De préférence, l'élément élastique est configuré pour exercer sur la visière en position baissée une force sensiblement orthogonale à la surface d'appui supérieure.Preferably, the elastic member is configured to exert on the visor in the lowered position a force substantially orthogonal to the upper bearing surface.

Selon un mode de réalisation de l'invention, la forme antérieure de la coque définit un point d'échappement de la visière, ledit point d'échappement correspondant à une position instable de la visière, située entre la position baissée et la position relevée, dans laquelle la résultante des forces exercées sur la visière par l'élément élastique d'une part, et par la coque d'autre part, est nulle.According to one embodiment of the invention, the front shape of the shell defines an escape point of the visor, said exhaust point corresponding to an unstable position of the visor, located between the lowered position and the raised position, in which the resultant forces exerted on the visor by the elastic element on the one hand, and by the hull on the other hand, is zero.

Ainsi, le casque peut être configuré de sorte que lorsque la visière est amenée en dessous du point d'échappement et est engagée dans le pourtour de la zone faciale, l'élément élastique tend à amener et maintenir ladite visière en position baissée, et, lorsque la visière est amenée au-dessus du point d'échappement, l'élément élastique tend à amener et maintenir ladite visière en position relevée. Cela permet un passage aisé et assisté de la position baissée de la visière vers la position relevée, et vice-versa.Thus, the helmet may be configured so that when the visor is brought below the exhaust point and is engaged in the periphery of the facial zone, the elastic element tends to bring and maintain said visor in the lowered position, and, when the visor is brought over of the exhaust point, the elastic element tends to bring and maintain said visor in the raised position. This allows easy and assisted passage from the lowered position of the visor to the raised position, and vice versa.

En particulier, le casque peut être conformé de sorte que, lorsque la visière est en position baissée, la visière tend à adopter une position d'équilibre, et, lorsque la visière est écartée de cette position d'équilibre, la force de réaction de la surface de réception sur la surface d'appui supérieure de la visière à la force générée sur la visière par l'élément élastique tend à ramener ladite visière vers ladite position d'équilibre. Cela peut notamment être obtenu en ménageant un décalage longitudinal entre la liaison entre l'élément élastique et la visière d'une part, et le point de contact entre la coque et la visière lorsque celle-ci est écartée de sa position d'équilibre (par exemple par le visage d'un utilisateur) d'autre part. Ce décalage génère un couple tendant à faire basculer la partie inférieure de la visière vers l'intérieur de la coque.In particular, the helmet may be shaped so that, when the visor is in the lowered position, the visor tends to adopt an equilibrium position, and when the visor is removed from this equilibrium position, the reaction force of the reception surface on the upper support surface of the visor to the force generated on the visor by the elastic element tends to bring said visor towards said equilibrium position. This can in particular be obtained by providing a longitudinal offset between the connection between the elastic element and the visor on the one hand, and the point of contact between the shell and the visor when the latter is moved away from its equilibrium position ( for example by the face of a user) on the other hand. This offset generates a torque tending to tilt the lower part of the visor towards the inside of the shell.

Ainsi, par conformation de l'interface entre la coque et la visière, la force générée par l'élément élastique lorsque la visière est baissée est transformée et tend à faire basculer la partie basse de la visière vers l'intérieur de la coque, pour ramener la visière en position d'équilibre. Cela permet de plaquer efficacement la visière, et notamment la partie inférieure de la visière, sur le visage d'un utilisateur portant le casque et offre une bonne étanchéité.Thus, by conformation of the interface between the shell and the visor, the force generated by the elastic element when the visor is lowered is transformed and tends to tilt the lower part of the visor towards the inside of the shell, for bring the visor back to the equilibrium position. This effectively cleaves the visor, including the lower part of the visor, on the face of a user wearing the helmet and provides a good seal.

De préférence, la surface d'appui supérieure de la visière ou la surface de réception de la coque comporte une cale ayant une épaisseur, une variation de l'épaisseur de la cale modifiant la position d'équilibre. La cale peut avantageusement comporter un mécanisme de réglage de son épaisseur.Preferably, the upper bearing surface of the visor or the receiving surface of the shell comprises a shim having a thickness, a variation of the thickness of the shim modifying the equilibrium position. The shim may advantageously comprise a mechanism for adjusting its thickness.

Dans un mode de réalisation de l'invention, une correspondance de forme entre la surface de réception de la coque et surface d'appui supérieure de la visière entraîne le centrage de la visière vis-à-vis de la coque, en position baissée de la visière.In one embodiment of the invention, a shape match between the receiving surface of the shell and the upper bearing surface of the visor causes the visor to center vis-à-vis the shell, in the lowered position of the visor.

Le casque peut comporter sur le pourtour de la zone faciale au moins une encoche destinée à recevoir l'élément élastique lorsque la visière est en position baissée. Cette encoche peut avoir plusieurs fonctions, notamment : permettre à l'élément élastique d'exercer ne force sensiblement orthogonale à la surface d'appui supérieure de la visière en position baissée, et/ou participer au bon centrage latéral de la visière.The helmet may comprise on the periphery of the facial zone at least one notch for receiving the elastic element when the visor is in the lowered position. This notch may have several functions, including: allowing the elastic element to exert substantially orthogonal force to the upper support surface of the visor in the lowered position, and / or participate in the correct lateral centering of the visor.

L'élément élastique peut comporter deux portions de cordon élastique chacune liée d'une part à la surface d'appui supérieure de la visière, et d'autre part à une zone arrière de la coque. Chaque portion de cordon peut être fixée à l'intérieur de la coque dont elle ressort par un orifice situé dans une moitié antérieure de la coque. Dans ce cas particulier où l'élément élastique comporte deux points de liaison sur la visière et la visière présente, entre sa position relevée et sa position baissée, un appui sensiblement ponctuel sur la coque du casque, le point d'échappement peut correspondre à une position dans laquelle les points de liaison de l'élément élastique sur la visière, le point d'appui de la visière sur la coque et les orifices sont coplanaires.The elastic element may comprise two portions of elastic cord each bonded on the one hand to the upper bearing surface of the visor, and on the other hand to a rear zone of the shell. Each portion of cord may be attached to the inside of the shell which it emerges through an orifice located in an anterior half of the shell. In this particular case where the elastic element has two connection points on the visor and the visor has, between its raised position and its lowered position, a substantially punctual support on the shell of the helmet, the exhaust point may correspond to a position in which the connection points of the elastic element on the visor, the point of support of the visor on the shell and the orifices are coplanar.

Les deux portions de cordon élastique peuvent faire partie d'un même cordon élastique. Elles peuvent, dans une autre variante, être indépendantes l'une de l'autre. Une rainure peut relier un orifice de sortie d'une portion de cordon élastique à une encoche de la coque en regard, de sorte qu'en position abaissée le cordon élastique sortant dudit orifice se loge dans la rainure.The two portions of elastic cord may be part of the same elastic cord. They may, in another variant, be independent of one another. A groove may connect an outlet port of a portion of elastic cord to a notch of the facing shell, so that in the lowered position the elastic cord exiting said orifice is housed in the groove.

La visière peut comporter une lentille comportant une face externe et une face interne, et en position relevée la face interne de la lentille fait face à une portion d'une surface externe de la coque.The visor may comprise a lens having an outer face and an inner face, and in raised position the inner face of the lens faces a portion of an outer surface of the shell.

Le casque peut comporter des moyens d'étanchéité à la neige, et/ou à l'eau, et/ou à la poussière :

  • dans la zone de contact entre la visière et la coque lorsque la visière est en position baissée ; et/ou
  • sur au moins une partie d'un pourtour de la visière, lesdits moyens d'étanchéité étant configurés pour assurer l'étanchéité vis-à-vis d'une portion d'un visage d'un utilisateur portant le casque.
The helmet may comprise means for sealing against snow, and / or water, and / or dust:
  • in the contact zone between the visor and the hull when the visor is in the lowered position; and or
  • on at least a portion of a periphery of the visor, said sealing means being configured to seal against a portion of a face of a user wearing the helmet.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-après.Other features and advantages of the invention will become apparent in the description below.

Aux dessins annexés, donnés à titre d'exemples non limitatifs :

  • la figure 1 présente, selon une vue schématique en trois dimensions, un casque de sport conforme à un mode de réalisation de l'invention, la visière étant en position relevée ;
  • la figure 2 présente, selon la vue de la figure 1, le casque de sport de la figure 1, la visière étant en position baissée ;
  • La figure 3 présente le casque représenté aux figures précédentes selon une vue schématique de face, la visière étant en position baissée ;
  • La figure 4 présente le casque représenté aux figures précédentes selon une vue schématique de profil, la visière étant en position relevée ;
  • La figure 5 présente le casque représenté aux figures précédentes selon une vue schématique de profil, la visière étant en position baissée ;
  • La figure 6 illustre schématiquement une zone d'interface entre la coque et la visière du casque représentée aux figures précédentes, la visière étant amenée en position baissée ;
  • La figure 7 illustre schématiquement certaines forces s'exerçant sur la visière dans une position proche de la position baissée ;
  • La figure 8 illustre schématiquement la visière en équilibre au point dit d'échappement ;
  • La figure 9 représente un exemple de mécanisme de réglage en épaisseur d'une cale, pouvant être employée dans un mode de réalisation de l'invention ;
  • La figure 10 représente un autre exemple de mécanisme de réglage en épaisseur d'une cale, pouvant être employée dans un mode de réalisation de l'invention.
In the accompanying drawings, given as non-limiting examples:
  • the figure 1 presents, in a schematic three-dimensional view, a sports helmet according to one embodiment of the invention, the visor being in the raised position;
  • the figure 2 present, according to the view of the figure 1 , the sports helmet of the figure 1 with the visor in a lowered position;
  • The figure 3 presents the helmet shown in the previous figures in a schematic front view, the visor being in the lowered position;
  • The figure 4 shows the helmet shown in the previous figures in a schematic side view, the visor being in the raised position;
  • The figure 5 presents the helmet shown in the previous figures in a schematic side view, the visor being in the lowered position;
  • The figure 6 schematically illustrates an interface zone between the shell and the visor of the helmet shown in the preceding figures, the visor being brought into the lowered position;
  • The figure 7 schematically illustrates certain forces exerted on the visor in a position close to the lowered position;
  • The figure 8 schematically illustrates the visor in equilibrium at the exhaust point;
  • The figure 9 is an example of a wedge thickness adjustment mechanism, which may be employed in one embodiment of the invention;
  • The figure 10 is another example of a wedge thickness adjusting mechanism, which may be employed in one embodiment of the invention.

La figure 1 présente selon une vue en trois dimensions un casque de sport conforme à un mode de réalisation de l'invention. Le casque représenté est un casque de ski. Le casque représenté comporte une coque 1 et une visière 2. La coque 1 est destinée à la protection de la tête de l'utilisateur du casque. Dans l'exemple ici représenté, la coque est conformée pour protéger en particulier les parties arrière, supérieure et latérale du crâne de l'utilisateur portant le casque. Dans l'exemple représenté, des coussinets 3 complètent la coque. Les coussinets 3 permettent la protection mécanique (contre les chocs), thermique et éventuellement acoustique des oreilles et éventuellement des lobes temporaux de l'utilisateur. De manière classique, la coque 1 présente une zone faciale 11 ouverte.The figure 1 presents in a three-dimensional view a sports helmet according to an embodiment of the invention. The helmet shown is a ski helmet. The helmet shown has a shell 1 and a visor 2. The shell 1 is for the protection of the head of the user of the helmet. In the example shown here, the shell is shaped to protect in particular the rear, top and side of the skull of the user wearing the helmet. In the example shown, pads 3 complete the shell. The pads 3 allow mechanical protection (against shocks), thermal and possibly acoustic ears and possibly the temporal lobes of the user. In a conventional manner, the shell 1 has an open face zone 11.

De manière générale, les notions d'avant et d'arrière du casque (ou similairement les notions d'antérieur et de postérieur) s'entendent selon la signification généralement adoptée pour un casque. L'arrière du casque correspond à la partie de la coque destinée à protéger l'arrière du crâne d'un utilisateur portant le casque. L'avant est le côté opposé, correspondant à la zone faciale de l'utilisateur portant le casque. Le haut du casque protège le haut du crâne de l'utilisateur. Le cou de l'utilisateur est vers le bas du casque. La notion de « longitudinal » s'entendant selon une direction avant-arrière du casque, la notion de « vertical » selon une direction haut-bas du casque, la notion de « transversal » selon une direction orthogonale à la direction longitudinale et à la direction verticale.In general, the concepts of front and rear of the helmet (or similarly the concepts of anterior and posterior) are understood according to the meaning generally adopted for a helmet. The back of the helmet corresponds to the part of the hull intended to protect the back of the skull of a user wearing the helmet. The front is the opposite side, corresponding to the facial area of the user wearing the helmet. The top of the helmet protects the top of the skull of the user. The user's neck is towards the bottom of the helmet. The notion of "longitudinal" means in a front-to-back direction of the helmet, the notion of "vertical" in a top-bottom direction of the helmet, the notion of "transverse" in a direction orthogonal to the longitudinal direction and the vertical direction.

La visière 2 est mobile entre une position relevée, présentée aux figures 1, et 4, et une position baissée, représentée aux figures 2, 3, 5, 6 et 7.The visor 2 is movable between a raised position, presented to figures 1 , and 4 , and a lowered position, represented in figures 2 , 3 , 5 , 6 and 7 .

La visière est destinée à recouvrir en position fermée au moins une portion du visage de l'utilisateur, et recouvre pour cela une portion correspondante de la zone faciale 11 ouverte de la coque 1.The visor is intended to cover in the closed position at least a portion of the face of the user, and covers for this a corresponding portion of the open face area 11 of the shell 1.

En position relevée, généralement appelée position ouverte, la visière est positionnée au-dessus de la partie antérieure de la coque 1, hors du champ de vision de l'utilisateur. La visière comporte une lentille 21 dont la face interne (généralement la face concave) fait face à une portion de la surface externe de la coque. Ainsi, la face interne de la lentille 21 est protégée des intempéries en position relevée. Typiquement, des gouttes de pluie ou des flocons de neige tombant sur le casque tombent sur la face externe de la lentille 21 qui est orientée vers le haut, tel que montré à la figure 4, mais ne viennent pas maculer la face interne de la lentille 21.In the raised position, generally called open position, the visor is positioned above the front part of the shell 1, out of the user's field of vision. The visor has a lens 21 whose inner face (generally the concave face) faces a portion of the outer surface of the shell. Thus, the inner face of the lens 21 is protected from the weather in the raised position. Typically, raindrops or snowflakes falling on the helmet fall on the outer face of the upwardly pointing lens 21, as shown in FIG. figure 4 , but do not stain the inner face of the lens 21.

La visière 2 peut être pourvue sur tout ou partie de son pourtour de moyens d'étanchéité 22 tels que de la mousse. Les moyens d'étanchéité 22 peuvent également participer au confort de port de la visière. Par exemple, les moyens d'étanchéité peuvent comporter des bandes de mousse. La notion d'étanchéité peut s'entendre vis-à-vis de la neige, de l'eau, et/ou de la poussière selon le sport auquel le casque est destiné. Par exemple, pour un casque de ski tel qu'ici représenté, c'est en premier lieu le passage de neige sous la visière qui doit être évité, par exemple lors d'une averse de neige ou suite à la chute à ski de l'utilisateur.The visor 2 may be provided on all or part of its periphery with sealing means 22 such as foam. The sealing means 22 can also participate in the wearing comfort of the visor. For example, the sealing means may comprise strips of foam. The concept The seal may be used for snow, water and / or dust depending on the sport for which the helmet is intended. For example, for a ski helmet as shown here, it is first and foremost the passage of snow under the visor which must be avoided, for example during a shower of snow or following the ski fall of the ski. 'user.

De manière classique, des sangles 4 liées à la coque 1 permettent la fixation du casque sur la tête de l'utilisateur.Conventionally, straps 4 connected to the shell 1 allow the attachment of the helmet on the head of the user.

Dans le casque objet de l'invention, la visière 2 est liée à la coque au moyen d'un élément élastique, dont l'élasticité permet le mouvement de la visière entre la position relevée stable et la position baissée stable et vice-versa. En particulier, la forme antérieure de la coque 1 définit un point dit d'échappement de la visière. Ce point d'échappement est typiquement définit par la pointe avant du casque, c'est-à-dire le point antérieur extrême du casque. L'élément élastique comporte un ou plusieurs points de fixation à la visière 2, définissant une liaison avec ladite visière. Lorsque la liaison de l'élément élastique sur la visière est en dessous du point d'échappement, la visière étant engagée dans le pourtour de la zone faciale ouverte, l'élément élastique tend à amener et maintenir la visière en position baissée. A contrario, lorsque la liaison de l'élément élastique sur la visière est amenée au-dessus du point d'échappement, l'élément élastique tend à amener et maintenir la visière en position relevée. Plus précisément, le point d'échappement correspond à la position instable de la visière, située entre la position baissée et la position relevée, dans laquelle la résultante des forces exercées sur la visière par l'élément élastique d'une part, et la par coque d'autre part, est nulle. Typiquement, lorsque l'élément élastique comporte deux points de liaison sur la visière 2 et que la visière présente, entre sa position relevée et sa position baissée, un appui ponctuel sur la coque du casque, le point d'échappement correspond à la position dans laquelle les points de liaison de l'élément élastique sur la visière 2 et le point d'appui de la visière sur la coque sont coplanaires.In the helmet object of the invention, the visor 2 is connected to the shell by means of an elastic element, whose elasticity allows the movement of the visor between the stable raised position and the stable down position and vice versa. In particular, the anterior shape of the shell 1 defines a so-called exhaust point of the visor. This exhaust point is typically defined by the front tip of the helmet, that is to say the extreme anterior point of the helmet. The elastic member has one or more attachment points to the visor 2, defining a connection with said visor. When the connection of the elastic element on the visor is below the exhaust point, the visor being engaged in the periphery of the open face area, the elastic element tends to bring and maintain the visor in the lowered position. Conversely, when the connection of the elastic element on the visor is brought above the exhaust point, the elastic element tends to bring and maintain the visor in the raised position. More precisely, the exhaust point corresponds to the unstable position of the visor, situated between the lowered position and the raised position, in which the resultant of the forces exerted on the visor by the elastic element on the one hand, and the hull on the other hand, is zero. Typically, when the elastic element has two connection points on the visor 2 and the visor has, between its raised position and its lowered position, a punctual support on the shell of the helmet, the exhaust point corresponds to the position in which the connection points of the elastic element on the visor 2 and the point of support of the visor on the hull are coplanar.

Ainsi, lorsque la visière est suffisamment relevée par l'utilisateur, c'est-à-dire relevée au-dessus du point d'échappement, elle remonte automatiquement ou à tout le moins de manière assistée vers sa position relevée, qui est stable et totalement prédéfinie. Dans cette position relevée, dans laquelle la visière repose typiquement au-dessus de la moitié antérieure du casque, la visière 2 est hors du champ de vision de l'utilisateur mais est facilement accessible. Ainsi, pour refermer la visière, c'est-à-dire la mettre en position abaissée, l'utilisateur peut aisément saisir la visière au-dessus de la coque 1, et exercer l'effort de traction vers le bas et vers l'avant nécessaire pour amener la visière 2 en dessous du point d'échappement. Typiquement, il peut s'agir d'amener l'intégralité de la visière sous la pointe avant de la coque 1 du casque.Thus, when the visor is sufficiently raised by the user, that is to say, raised above the exhaust point, it goes back automatically or at least in a assisted manner to its raised position, which is stable and totally predefined. In this raised position, in which the visor typically rests above the front half of the helmet, the visor 2 is out of the user's field of view but is easily accessible. Thus, to close the visor, that is to say put it in the lowered position, the user can easily grasp the visor above the shell 1, and exert the pulling force down and towards the before necessary to bring the visor 2 below the exhaust point. Typically, it may be to bring the entire visor under the front tip of the shell 1 of the helmet.

L'élément élastique comporte, dans l'exemple de casque ici représenté, et tel que bien montré notamment à la figure 3, deux portions de cordon élastique 5. Les deux portions de cordon élastique 5 peuvent, selon des variantes de l'invention, être séparées ou faire partie d'un seul et même cordon élastique.The elastic element comprises, in the example of helmet shown here, and as shown well in particular in the figure 3 two portions of elastic cord 5. The two portions of elastic cord 5 may, according to variants of the invention, be separated or be part of one and the same elastic cord.

Les portions de cordon élastique sont liées d'une part à la visière 2. Elles sont liées d'autre part à la coque du casque. En particulier, elles sont liées à l'arrière de la coque 1, c'est-à-dire dans la zone arrière 12 du casque destinée à protéger l'arrière de la tête de l'utilisateur, autrement dit la zone de la coque opposée à la zone faciale 11 ouverte. Cela permet aux portions de cordon élastique d'avoir une longueur suffisante pour permettre le mouvement de la visière entre la position relevée et la position baissée.The elastic cord portions are linked on the one hand to the visor 2. They are linked on the other hand to the helmet shell. In particular, they are linked to the rear of the shell 1, that is to say in the rear area 12 of the helmet intended to protect the back of the head of the user, in other words the area of the hull opposite to the open face area 11. This allows the elastic cord portions to have a length sufficient to allow movement of the visor between the raised position and the lowered position.

Les portions de cordon élastique 5 sont avantageusement liées à la coque 1 à l'intérieur de celle-ci, typiquement sur une face interne de la coque 1. Les portions de cordon 5 ressortent par des orifices 13 situés dans la moitié antérieure de la coque 1, c'est-à-dire la moitié de la coque 1 située à proximité de la zone faciale 11, typiquement au niveau d'une calotte supérieure de la coque 1. Les orifices peuvent avoir une forme oblongue, permettant la sortie des portions de cordon 5 de la coque 1 sans générer de pliure des portions de cordon lorsque la visière est en position baissée.The portions of elastic cord 5 are advantageously connected to the shell 1 inside thereof, typically on an inner face of the shell 1. The cord portions 5 emerge through orifices 13 located in the anterior half of the shell 1, that is to say half of the shell 1 located near the facial zone 11, typically at an upper cap of the shell 1. The orifices may have an oblong shape, allowing the exit of the portions cord 5 of the shell 1 without generating fold cord portions when the visor is in the lowered position.

Bien évidemment, l'élément élastique peut ne comporter qu'un seul point de liaison avec la visière 2. A contrario, l'élément élastique peut comporter plus de deux points de liaison avec la visière 2. Trois (ou plus) points de liaison peuvent offrir un meilleur rappel de la visière vers sa position relevée et vers sa position baissée, un meilleur calage en position de la visière 2, une plus grande force de rappel, etc.Of course, the elastic element may comprise only one point of connection with the visor 2. On the contrary, the elastic element may comprise more than two points of connection with the visor 2. Three (or more) points of connection may offer a better return of the visor towards its raised position and towards its lowered position, a better setting in position of the visor 2, a larger recall force, etc.

Des moyens permettant de désaccoupler aisément et, le cas échéant, sans outil, la visière 2 de la coque 1 peuvent avantageusement être prévus. Le désaccouplement peut, selon les variantes, être réalisé au niveau de la liaison entre l'élément élastique et la visière ou au niveau de la liaison entre l'élément élastique et la coque. Par exemple, l'élément élastique peut comporter, à une ou plusieurs extrémités, des boutons destinés à être respectivement introduits dans des fentes ou boutonnières de la visière 2.Means for disconnecting easily and, if necessary, without tools, the visor 2 of the shell 1 may advantageously be provided. The uncoupling may, depending on the variants, be carried out at the level of the connection between the elastic element and the visor or at the level of the connection between the elastic element and the shell. For example, the elastic element may comprise, at one or more ends, buttons intended to be respectively introduced into slots or buttonholes of the visor 2.

D'autres moyens de fixation rapide peuvent être employés. Par exemple, ces moyens peuvent comporter un ou plusieurs crochets destinés à coopérer avec des boucles de l'élément élastique.Other quick fastening means may be employed. For example, these means may comprise one or more hooks intended to cooperate with loops of the elastic element.

Le désaccouplement de la visière permet un changement de celle-ci, et/ou peut être réalisé pour le rangement du casque.The uncoupling of the visor allows a change thereof, and / or can be made for storing the helmet.

Lorsque la visière 2 du casque est amenée en position baissée tel que représenté à la figure 2, l'élément élastique, c'est-à-dire typiquement les portions de cordon élastique 5, est mis en tension. Tant que la visière n'est pas amenée dans une certaine configuration proche de la position baissée, l'élément élastique tend à ramener la visière vers la position relevée.When the visor 2 of the helmet is brought into the down position as shown in FIG. figure 2 , the elastic element, that is to say typically the portions of elastic cord 5, is tensioned. As long as the visor is not brought into a certain configuration close to the lowered position, the elastic element tends to return the visor to the raised position.

Dans le mode de réalisation représenté sur les dessins annexés, une encoche 14 est ménagée sur l'arrête antérieure 15 de la coque 1 pour recevoir, lorsque la visière est en position baissée, chaque portion de cordon sortant d'un orifice 13. Dans l'exemple ici représenté, deux encoches 14 sont donc ménagées. Outre leur fonction de centrage, les encoches 14 permettent aux portions de cordon 5 d'exercer un effort essentiellement vertical sur la visière 2 en position baissée. Plus précisément, lorsque la visière 2 est en position baissée, une surface d'appui supérieure 23 de la visière 2 est mise en contact avec une surface de réception 16 de la coque 1. La surface de réception 16 a une forme adaptée à la mise en appui de la surface d'appui supérieure 23 de la visière 2, et est positionnée dans une partie supérieure de la zone faciale 11 ouverte de la coque 1. Les portions de cordon sont fixées dans une zone supérieure de la visière. Ainsi, grâce aux encoches 14, l'effort exercé sur la visière par les portions de cordon 5 est essentiellement perpendiculaire à la surface d'appui supérieure 23 qu'il tend à plaquer contre la surface de réception 16. Une vue de détail de la zone d'interaction entre la visière et la coque, au niveau des encoches 14, est présentée à la figure 6. La présence de deux portions de cordon 5 disposées symétriquement de part et d'autre d'un plan de symétrie P du casque, représenté à la figure 3, permet de garantir le centrage de la visière 2 vis-à-vis de la coque 1. Néanmoins, comparativement à un casque comportant une visière mobile pivotante autour d'un axe, la liaison élastique entre la coque et la visière peut autoriser un léger décentrage de la visière 2 vis-à-vis de la coque 1. Cela permet un bon ajustement et un bon confort de la visière sur le visage de l'utilisateur portant le casque, notamment si le casque est légèrement désaxé par rapport au visage de l'utilisateur, ou si le visage de l'utilisateur présente une légère asymétrie.In the embodiment shown in the accompanying drawings, a notch 14 is formed on the front edge 15 of the shell 1 to receive, when the visor is in the lowered position, each portion of cord leaving an orifice 13. In the example shown here, two notches 14 are formed. In addition to their centering function, the notches 14 allow the portions of the cord 5 to exert a substantially vertical force on the visor 2 in the lowered position. Specifically, when the visor 2 is in the lowered position, an upper bearing surface 23 of the visor 2 is brought into contact with a receiving surface 16 of the shell 1. The receiving surface 16 has a shape adapted to the setting in support of the upper bearing surface 23 of the visor 2, and is positioned in an upper part of the facial zone 11 open the hull 1. The cord portions are fixed in an upper area of the visor. Thus, thanks to the notches 14, the force exerted on the visor by the cord portions 5 is essentially perpendicular to the upper bearing surface 23 that it tends to press against the receiving surface 16. A detailed view of the zone of interaction between the visor and the shell, at the level of the notches 14, is presented to the figure 6 . The presence of two portions of cord 5 arranged symmetrically on either side of a plane of symmetry P of the helmet, shown in FIG. figure 3 , makes it possible to guarantee the centering of the visor 2 vis-à-vis the shell 1. Nevertheless, compared to a helmet comprising a movable visor pivoting about an axis, the elastic connection between the shell and the visor may allow a slight off the visor 2 vis-à-vis the shell 1. This allows a good fit and comfort of the visor on the face of the user wearing the helmet, especially if the helmet is slightly out of alignment with the face of the user, or if the user's face has a slight asymmetry.

Pour cela, les encoches 14 peuvent présenter une forme en V ouvert vers le pourtour de la zone faciale ouverte, offrant ainsi une certaine liberté de positionnement latéral de l'élément élastique, et donc de la visière vis-à-vis de la coque du casque.For this, the notches 14 may have an open V shape around the periphery of the open face area, thus providing a certain freedom of lateral positioning of the elastic element, and therefore the visor vis-à-vis the shell of the helmet.

La zone d'appui entre surface d'appui supérieure 23 et la surface de réception 16 est conformée pour faire adopter à la visière une position d'équilibre lorsque la visière 2 est en position baissée.The support zone between the upper bearing surface 23 and the receiving surface 16 is shaped to adopt the visor an equilibrium position when the visor 2 is in the lowered position.

La Figure 7 représente la visière dans une position proche de la position d'équilibre, la visière étant légèrement basculée sur la pointe avant 17 du casque. Ainsi, le point ou la zone d'appui de la visière 2 sur la coque 1 du casque, en l'occurrence à proximité de la pointe avant 17 du casque est décalée longitudinalement par rapport aux points de liaison de l'élément élastique sur la visière 2. Cela permet de générer un couple tendant à ramener la visière en contact avec la coque du casque. Ainsi, lorsque la visière est écartée jusqu'à un certain point de cette position d'équilibre, par exemple par la face d'un utilisateur portant le casque, la force de réaction de la surface de réception 16 sur la surface d'appui supérieure 23 de la visière 2 à la force générée sur la visière 2 par l'élément élastique tend à ramener ladite visière 2 vers la position d'équilibre par génération d'un couple de basculement. Les forces générant ce couple sont représentées par des flèches à la figure 7. Cela permet de plaquer une partie basse 24 de la visière 2 sur le visage de l'utilisateur (non représenté) portant le casque, assurant ainsi une bonne étanchéité entre la visière et le visage de l'utilisateur, éventuellement en coopération avec les moyens d'étanchéité 22.The Figure 7 represents the visor in a position close to the equilibrium position, the visor being slightly tilted on the front tip 17 of the helmet. Thus, the point or the zone of support of the visor 2 on the shell 1 of the helmet, in this case close to the front tip 17 of the helmet is offset longitudinally with respect to the connection points of the elastic element on the visor 2. This makes it possible to generate a torque tending to bring the visor into contact with the shell of the helmet. Thus, when the visor is spaced to a certain point from this equilibrium position, for example by the face of a user wearing the helmet, the reaction force of the receiving surface 16 on the upper bearing surface 23 from the visor 2 to the force generated on the visor 2 by the elastic element tends to return said visor 2 to the equilibrium position by generating a tilting torque. The forces generating this couple are represented by arrows at the figure 7 . This makes it possible to press a lower part 24 of the visor 2 onto the face of the user (not shown) wearing the helmet, thus ensuring a good seal between the visor and the face of the user, possibly in cooperation with the means of protection. sealing 22.

La figure 8 présente la position particulière de la visière 2 dans laquelle il n'y a plus de décalage entre le point ou la zone d'appui de la visière 2 sur la coque 1 et les points de liaison de l'élément élastique sur la visière 2, de sorte qu'il n'y a plus de couple généré tendant à ramener la visière en position basse. Cette position d'équilibre instable, dans laquelle la résultante des forces (représentées par des flèches) exercées sur la visière est nulle, correspond au point d'échappement. Selon que la visière est décalée légèrement vers le haut ou légèrement vers le bas, l'élément élastique tendra à amener la visière vers sa position stable relevée ou dans sa position stable baissée.The figure 8 presents the particular position of the visor 2 in which there is no longer any gap between the point or the bearing area of the visor 2 on the shell 1 and the connection points of the elastic element on the visor 2, so that there is more torque generated tending to bring the visor down. This position of unstable equilibrium, in which the resultant forces (represented by arrows) exerted on the visor is zero, corresponds to the exhaust point. Depending on whether the visor is shifted slightly upwards or slightly downwards, the elastic element will tend to bring the visor towards its raised stable position or its lowered stable position.

Afin d'ajuster la force exercée par la visière sur le visage de l'utilisateur, une cale peut être disposée au niveau de la surface de réception 16 ou de la surface d'appui supérieure 23 de la visière 2. L'épaisseur de la cale entraîne une modification de la position d'équilibre de la visière en position baissée, qui se traduit par une modification de la pression sur le visage de l'utilisateur. Afin de pouvoir rapidement ajuster le casque à la morphologie de l'utilisateur, et pour supprimer les risques de perte de la cale, cette dernière peut être réglable en épaisseur. La figure 9 représente un exemple de mécanisme de réglage en épaisseur d'une cale, pouvant être employé dans un mode de réalisation de l'invention. Ce mécanisme comporte une vis à tête large 61 formant cale.In order to adjust the force exerted by the visor on the face of the user, a shim may be disposed at the receiving surface 16 or the upper bearing surface 23 of the visor 2. The thickness of the wedge causes a change in the balance position of the visor in the lowered position, which results in a change in the pressure on the face of the user. In order to quickly adjust the helmet to the morphology of the user, and to eliminate the risk of loss of the hold, the latter can be adjustable in thickness. The figure 9 is an example of a wedge thickness adjusting mechanism, which may be employed in one embodiment of the invention. This mechanism comprises a wide head screw 61 forming wedge.

La figure 10 représente un autre exemple de mécanisme de réglage en épaisseur d'une cale, pouvant être employé dans un mode de réalisation de l'invention. Dans cet exemple de mode de réalisation, deux plans inclinés 62, 63 sont mobiles l'un par rapport à l'autre de sorte à faire varier l'épaisseur de l'ensemble formant cale qu'ils composent. Une vis 64 permet leur immobilisation relative.The figure 10 is another example of a wedge thickness adjusting mechanism, which may be employed in one embodiment of the invention. In this exemplary embodiment, two inclined planes 62, 63 are movable relative to each other so as to vary the thickness of the wedge assembly they compose. A screw 64 allows their relative immobilization.

Une correspondance de forme entre la surface d'appui supérieure 23 et la surface de réception 16 peut permettre de garantir une unicité de position de la visière 2 en position baissée vis-à-vis de la coque 1. En particulier, elle peut permettre de garantir le centrage de la visière. La notion de centrage s'entend comme le fait de positionner latéralement (typiquement, perpendiculairement à un plan de symétrie P du casque, représenté à la figure 3) la visière 2 dans une position relative donnée vis-à-vis de la coque 1 du casque.A correspondence of shape between the upper bearing surface 23 and the receiving surface 16 can make it possible to guarantee uniqueness of the position of the visor 2 in the lowered position with respect to the shell 1. In particular, it can make it possible to guarantee the centering of the visor. The notion of centering is understood as the fact of positioning laterally (typically, perpendicularly to a plane of symmetry P of the helmet, represented in FIG. figure 3 ) the visor 2 in a given relative position vis-à-vis the shell 1 of the helmet.

Par ailleurs, lorsque la visière 2 est écartée de sa position d'équilibre en position baissée de sorte que la visière est avancée complètement au-delà de la surface de réception 16 et légèrement relevée, l'élément élastique tend à amener la visière dans sa position stable relevée. Ainsi, l'utilisateur portant le casque souhaitant en relever la visière peut le faire aisément simplement en écartant suffisamment la visière de son visage, et le cas échéant, en accompagnant légèrement le mouvement que l'élément élastique tend à imprimer à la visière 2. Toutes les positions de la visière du casque entre la position stable relevée et la position stable baissée étant instable, l'élément élastique tend systématiquement à amener la visière vers l'une de ces positions stables. Ainsi, pour ramener la visière en position baissée, il suffit à l'utilisateur de ramener la visière (en particulier sa surface d'appui supérieure 23) en regard de la surface de réception 16 de la coque 1 ou à tout le moins dans le pourtour de la zone faciale ouverte 11, et d'accompagner le cas échéant le mouvement que l'élément élastique tend à imprimer à la visière vers sa position stable baissée.Furthermore, when the visor 2 is moved away from its equilibrium position in the lowered position so that the visor is advanced completely beyond the receiving surface 16 and slightly raised, the elastic element tends to bring the visor into its seat. stable position noted. Thus, the user wearing the helmet wishing to lift the visor can easily do so by sufficiently removing the visor of his face, and if necessary, by slightly accompanying the movement that the elastic element tends to print to the visor 2. Since all the positions of the helmet visor between the raised stable position and the lowered stable position are unstable, the elastic element systematically tends to bring the visor towards one of these stable positions. Thus, to bring the visor down, it is sufficient for the user to bring the visor (in particular its upper bearing surface 23) facing the receiving surface 16 of the shell 1 or at least in the around the open face area 11, and if necessary accompany the movement that the elastic element tends to print to the visor to its lowered stable position.

L'invention ainsi développée permet donc la fourniture d'un casque de protection, notamment d'un casque de sport et par exemple d'un casque de ski, offrant une visière mobile intégrée au casque avec lequel elle forme un ensemble cohérent et potentiellement esthétique, sans présenter les inconvénients des visières mobiles liés à la coque du casque par selon un axe de rotation (comme sur les casques de moto).The invention thus developed allows the provision of a protective helmet, including a sports helmet and for example a ski helmet, providing a mobile visor integrated helmet with which it forms a coherent and potentially aesthetic without the disadvantages of the mobile visors attached to the helmet shell by an axis of rotation (as on motorcycle helmets).

En particulier, la taille de la lentille de la visière peut être modérée. Par l'emploi d'une liaison élastique et d'une interface adaptée entre la coque et la visière, une unicité de positionnement, et donc un bon centrage de la visière lorsque celle-ci est baissée peut être assurée. En outre, l'emploi d'une interface entre la coque et la visière en position baissée mettant en oeuvre un contact entre une surface d'appui supérieure de la visière et une zone de réception de la coque située sur le pourtour d'une zone faciale ouverte (en partie haute de cette dernière) permet d'une part une bonne étanchéité entre la visière et la coque d'une part au niveau de cette interface, et d'autre part un bon appui de la visière sur le visage de l'utilisateur du casque.In particular, the size of the lens of the visor can be moderate. By the use of an elastic connection and a suitable interface between the shell and the visor, uniqueness of positioning, and therefore a good centering of the visor when it is lowered can be ensured. In addition, the use of an interface between the hull and the visor in the lowered position implementing a contact between an upper bearing surface of the visor and a receiving zone of the hull located on the periphery of an area open face (in the upper part of the latter) allows on the one hand a good seal between the visor and the hull on the one hand at the interface, and on the other hand a good support of the visor on the face of the helmet user.

Enfin, en proposant deux positions stables, relevées et baissées, le casque objet de la présente invention permet un passage aisé entre ces deux positions stables.Finally, by proposing two stable positions, raised and lowered, the helmet object of the present invention allows easy passage between these two stable positions.

Claims (15)

  1. Protective helmet having a built-in movable visor, comprising a shell (1) that has an open facial region (11), and a visor (2) that can move between a raised stable position and a lowered stable position in which said visor covers said facial region (11) at least in part, the visor (2) being connected to the shell (1) by means of a resilient element, characterised in that the visor (2) comprises an upper bearing surface (23) and the shell (1) comprises, on a periphery of the facial region (11) and located in an upper part of the open facial region, a surface (16) for receiving the upper bearing surface (23) of the visor (2), and in that when the visor (2) is in the lowered position, the visor (2) is engaged inside the periphery of the open facial region (11), the upper bearing surface (23) of the visor (2) is in contact with the receiving surface (16) of the shell (1) and the resilient element tends to press said upper bearing surface (23) of the visor (2) against the receiving surface (16) of the shell (1).
  2. Helmet according to claim 1, wherein the resilient element is designed for exerting a force that is substantially orthogonal to the upper bearing surface (23) on the visor (2) in the lowered position.
  3. Helmet according to either claim 1 or claim 2, wherein the frontal shape of the shell defines a release point of the visor (2), said release point corresponding to an unstable position of the visor (2) that is located between the lowered position and the raised position and in which the resultant of the forces exerted on the visor (2) by the resilient element and by the shell (1) is zero.
  4. Helmet according to claim 3, designed such that when the visor (2) is moved below the release point and engaged inside the periphery of the facial region (11), the resilient element tends to move said visor (2) into the lowered position and retain it therein, and when the visor (2) is moved above the release point, the resilient element tends to move said visor (2) into the raised position and retain it therein.
  5. Helmet according to any of the preceding claims, shaped such that when the visor (2) is in the lowered position, the visor tends to assume an equilibrium position, and when the visor is moved away from said equilibrium position, the reaction force of the receiving surface (16) on the upper bearing surface (23) of the visor (2) to the force applied to the visor (2) by the resilient element tends to bring said visor (2) back towards said equilibrium position.
  6. Helmet according to claim 5, wherein the upper bearing surface (23) of the visor or the receiving surface (16) of the shell (1) comprises a plate having a thickness, a variation in the thickness of the plate altering the equilibrium position.
  7. Helmet according to claim 6, wherein the plate comprises a mechanism for adjusting the thickness thereof.
  8. Helmet according to any of the preceding claims, in which a correlation between the shape of the receiving surface (16) of the shell (1) and the shape of upper bearing surface (23) of the visor (2) results in the visor (2) being centred with respect to the shell (1) when the visor (2) is in the lowered position.
  9. Helmet according to any of the preceding claims, comprising at least one notch on the periphery of the facial region that is intended for receiving the resilient element when the visor is in the lowered position.
  10. Helmet according to any of the preceding claims, wherein the resilient element comprises two portions of resilient cord (5) which are each connected both to the upper bearing surface (23) of the visor (2) and to a rear region of the shell (1).
  11. Helmet according to claim 10, wherein each portion of cord is secured to the inside of the shell (1), from which said portion of cord emerges through an opening (13) located in a frontal half of the shell (1).
  12. Helmet according to claims 3 and 11, wherein the visor has, between the raised position thereof and the lowered position thereof, a substantially point-shaped bearing on the shell of the helmet, and wherein the release point corresponds to a position in which the points for connecting the resilient element on the visor (2), the bearing point of the visor on the shell and the openings (13) are coplanar.
  13. Helmet according to claims 9 and 11, wherein a groove connects an exit opening (13) for a portion of resilient cord (5) to an opposite notch (14) in the shell (1) such that the resilient cord that exits said opening (13) is received in the groove in the lowered position.
  14. Helmet according to any of the preceding claims, the visor (2) comprising a lens (21) that has an outer convex face and an inner concave face, wherein the inner face of the lens (21) is opposite a portion of an outer surface of the shell (1) in the raised position.
  15. Helmet according to any of the preceding claims, comprising means for sealing against snow and/or water and/or dust:
    - in the contact region between the visor (2) and the shell (1) when the visor (2) is in the lowered position; and/or
    - on at least one part of a periphery of the visor, said sealing means being designed for ensuring sealing from a portion of the face of a user wearing the helmet.
EP15738326.6A 2014-07-18 2015-07-15 Protective helmet with built-in mobile visor Active EP3169174B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1456985A FR3023680B1 (en) 2014-07-18 2014-07-18 INTEGRATED MOBILE VISOR PROTECTIVE HELMET
PCT/EP2015/066112 WO2016008902A1 (en) 2014-07-18 2015-07-15 Protective helmet with built-in mobile visor

Publications (2)

Publication Number Publication Date
EP3169174A1 EP3169174A1 (en) 2017-05-24
EP3169174B1 true EP3169174B1 (en) 2018-12-19

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EP15738326.6A Active EP3169174B1 (en) 2014-07-18 2015-07-15 Protective helmet with built-in mobile visor

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EP (1) EP3169174B1 (en)
FR (1) FR3023680B1 (en)
WO (1) WO2016008902A1 (en)

Cited By (1)

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AT520951B1 (en) * 2018-02-20 2020-07-15 Head Technology Gmbh Sports helmet with visor and fastening element

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TWI695690B (en) * 2019-04-19 2020-06-11 隆輝安全帽有限公司 Helmet lens set
US20230136136A1 (en) 2020-03-27 2023-05-04 Scott Sports Sa Protective helmet with a shell and a movable visor
US12089682B1 (en) 2024-01-17 2024-09-17 Zachary Ashworth Bath shower accessory

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DE3305568A1 (en) * 1983-02-18 1984-08-23 Battelle-Institut E.V., 6000 Frankfurt Protective helmet
US7716754B1 (en) 2007-03-27 2010-05-18 William Ross Ski helmet with adjustable face shield
FR2927230B1 (en) * 2008-02-12 2010-06-04 Laurent Dupouy ASSEMBLY COMPRISING A HELMET AND A PROTECTIVE GLASS
WO2010076817A1 (en) * 2008-12-29 2010-07-08 Safilo Società Azionaria Fabbrica A device for the detachable connection of protective goggles of the mask type to protective helmets for sports use and a helmet including the device
ITBG20100032U1 (en) 2010-09-29 2012-03-30 Prorace S R L SKI HELMET WITH MISSING VISOR
DE102013209564B4 (en) * 2012-05-24 2017-03-23 Casco Group Societate In Comandita Simpla (Scs) Sports helmet with movable visor

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AT520951B1 (en) * 2018-02-20 2020-07-15 Head Technology Gmbh Sports helmet with visor and fastening element

Also Published As

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EP3169174A1 (en) 2017-05-24
FR3023680B1 (en) 2017-05-19
FR3023680A1 (en) 2016-01-22
WO2016008902A1 (en) 2016-01-21

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